Record controlled system



@ci 1945 s. E. WILLIAMS Zy RECORD CONTROLLED SYSTEM Filed Aug. '7, 1940l5 Sheets-Sheet l ATTORNEY 16, 1945. s. B. WILLIAMS RECORD CONTROLLEDSYS TEM Filed Aug. '7, 1940 l5 Sheets-Sheei 2 /NVE/V TOR I TTOvRA/EV S.B. WlLLA/ RECORD CONTROLLED SYSTEM Filed Aug. 7, 1940 l5 Sheets-Sheet 3NQN WN mwN GN www @mw ATTORNEY 0d., 169 1945o s. B wlLLmMs RECORDCONTROLLED SYSTEM Filed Aug. 7, 1940 l5 Sheets-Sheet 4 @SPQR cit, E69394g, s. E. WILLAAMS RECORD CONTROLLED SYSTEM Filed Aug. 7, 1940 l5Sheets-Sheet 5 /NI/ENTOR ATTOR/VEV @et E@ i945., S. B. WLM/AMS 2,386,753

RECORD CONTROLLED SYSTEM Filed Aug. 7, 1940 l5 SheetS-Slleei'l 6 VEA/TOR5, E. W/LL /A M5 A TTONEV Oct. 16, 1945. s. E. WILLIAMS RECORDCONTROLLED' SYSTEM Filed Aug. 7, 1940 l5 Sheets-Sheet 7 A TTOR/VE V 15Sheets-Sheet 8 s. B. WILLIAMS RECORD CONTROLLED SYSTEM Filed Aug. '7,1940 Oct. 16, 1945.

@eto 169 1945. s. B. WALUAMS RECORD CONTROLLED SYSTEM l5 Shee'ts-Sheet 9Filed Aug. 7, 1940 ATTORNEY Oct. 16, 1945.,

S. B. WILLIAMS RECORD CONTROLLED SYSTEM Filed Aug. '7, 1940 l5Sheets-Sheet lO A TTOR/VE/ ct., 16, 1945. s. B. WILLIAMS RECORDCONTROLLED SYSTEM Filed Aug. 7, 1940 l5 Sheets-Sheet ll reg Oct. 1945.1s, s. WILLIAMS RECORD CONTROLLED SYS TEM Filed Aug. 7, 1941.0

15 Sheets-Sheet l2 A T TOR/VU @do S, 1945. 5 E. WILUAMS 293556,75@

RECORD CONTROLLED SYSTEM Filed Aug. '7, 1940 l5 SheeS-Sheer. 13

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0st. 16, 1945. s. B. WiLLnAMs RECORD CONTROLLED SYSTEM 1940 15Sheecs-Shee'u 14 Filed Aug.

M055@ mm muwj mme Q om mumum: oo o@ m mummo og* FIG. IEP/ S. B. WILLHAMSRECORD CONTROLLED SYSTEM Filed Aug. 7, 1940 l5 Sheets-Sheet l5 GRU/VD 0NCONDUCTOR 47 GROUND 0N CG/VDUC TOR 249 GROl//V 0N I C NDUC T 0R 5l@ECE/VINS REG/5775i? ACCUMIULAT/NG REGISTER COMPUEA CYCLE SETTINGUWE/v70@ .S E. WIM/AMS ATTO/@Alfy Patented Oct. 16, 1945 2,386,763RECORD CONTRGLLED SYSTEM Samuel B. Williams, Brooklyn, N. Y., assignorto Bell Telephone Laboratories,

Incorporated,

New York, N. Y., a corporation of New York Application August 7, 1940,Serial No. 351,661

17 Claims.

The present invention relates to record controlled apparatus andparticularly to distributing and computing equipment adapted to operate,automatically and in an appropriate order in response to a prepunchedtape, one of a plurality of perforating devices for the production ofother tapes on which are to be punched in numerical order certain itemsof information appearing in said prepunched tape, together with certaincomputed items relating thereto.,

Specifically, the present invention is adapted to be operativelyresponsive to the vpunched tape prepared by the invention disclosed andclaimed in my copending application, Serial No. 336,494, led May 22,1940. According to that invention, which relates to a telephone systemincluding means adapted to produce a punched record of calls made from aplurality of telephone lines and in which the record contains thecalling line numbers, the number of unit charges for each call made fromeach line and a period character which is used for switching purposes,the records for the individual lines are distributed non-consecutivelythroughout the tape with respect to the numerical designation of thelines but in the chronological order in which the several calls weremade. The objective of the entire inventive idea comprehended by themeans disclosed and claimed in the above-mentioned copending applicationand the means disclosed and claimed in the present application is theproduction of a punched record containing thereon in numerical order theline numbers from which the calls were made and the total of all unitcharges adjacent each number which is assessable against the linedesignated by the number for the calls made therefrom and recorded onthe original tape. The punched record prepared by means of the presentinvention may then be passed through any suitable record controlledprinting device to produce a bill for each line.

According to the present invention, the original or oillce tape to whichthe equipment and circuits thereof respond comprises a punched tape orrecord containing information, in suitable code form, relating totelephone connections completed from the lines in the oiice, theinformation for each completed call consisting of the four digits of thecalling line number, a digit which indicates the number of charge unitsto be assessed for the call, and a "period following the charge digit toindicate the termination of the information for the particular callrecorded. In the following description of the operation of theinvention, refer- (Cl. 23S-@Lim ence to a line number as punched on therecord will be made in terms of its thousands, hundreds, tens and unitsdigit, the fifth digit which follows the units digit as the charge digitand the period which follows the fifth digit as the period code. Theoihce tape is resolved by the equipment of the invention into a group often thousands tapes on which are collected all the line numbers havingidentical thousands digits together with their separate charges. Each ofthese tapes is then analyzed" according to the hundreds digit and theten hundreds tapes thus produced are subsequently analyzed againaccording to the tens digit wherein the line numbers having the samethousands, hundreds and tens digits are collected on one tape. Thesetens tapes are finally analyzed according to the units digit of each ofthe line numbers thereon and ten final tapes are produced on which theindividual line numbers and the total charges for each of the lines arepunched adjacent to each other. The final tapes thus emerging from theseoperations will have all the line numbers thereon arranged in numericalorder, each followed by its own total number of charges, providing, ofcourse, that the tens tapes are sorted in the correct numerical order. Apunched tape of this kind may then be used to operate a suitable printerby means of which the line number and total charges therefor are printedon separately prepared bill-heads.

In order to carry out the foregoing operations to produce the intendedresult, there is provided a. distributor circuit with a suitable tapetransmitter as part thereof, a plurality of settable registers, tenperforating devices and associated computers, and suitable connectors bywhich the distributor circuit, any one of the perforators and any one ofthe registers may be operatively connected together.

In the drawings:

Figs. 1 and 2 show the perforator circuit;

Figs. 3, 3A and 4 show the computer part of the perforator circuit;

Fig. 5 shows the perforator connector;

Fig. 6 shows the register connector;

Fig. '7 shows the distributor circuit;

Figs. 8 to 12, inclusive, show the register circuits;

Figs. 14 to 1'7, inclusive, show schematic forms of the various tapesproduced by the above apparatus including the final tape (Fig. 17);

Figs. 14A to 17A, inclusive, show schematically the actual longitudinalarrangement of the numbers which are shown transversely on the tapes ofFigs. 14 to 17, inclusive and respectively; while SECTION I.-GENERALDESCRIPTION The distributor circuit comprises a magnet operatedtransmitter l i through which the original tape is passed, a steppingswitch 120 that serves to operate responsive means by which thedistributor circuit may be connected to each of the registers insuccession, a group of relays 1H, 7|8, 1L:

'H9 and 12|, by which selective conductors from each of the registersare used to operate an appropriate relay in the perforator connector bywhich the selected perforator circuit is connected to the registerconnector, and a group of keys 10i-104, inclusive, by which each of therelays in the above group of relays may be operated in the orderindicated by the sorting operations described hereinafter.

Each register circuit, as for example the thousands register shown inFig. 8, comprises a group of register relays BUI-805, inclusive, whichresponds to the thousands code of a line number on the oiiice tape tostore the digit designated by the code, a cut-in relay 8|0 by which thedistributor circuit is connected to the register, and two other relays,namely, relays 80B and 801, the former of which locks in with theregister and the latter operates only in the cases designated below whena particular digit registration is to be retained for a plurality ofoperations.

'I'he perforator circuit (of which there are ten as indicated) comprisesa perforator |00 of known construction such as, for example, the oneshown in Patent 1,174,427, issued to C. L. and H. L. Krum on March 7,1916, a group of register relays l0 l-i 05 which take from each of theregisters the code of the digit or character to be punched on the tapecontrolled by the perforator |00, and a control circuit which not onlyguides the punching of the desired digits in the desired sequence butalso controls the transmission back to the perforator, for punchingpurposes, of the number locked in the computer (Figs. 3, 3A and 4)representing the total charges for a line.

'I'he computer part of the perforator comprises three registers: namely,a receiving register made up of relays 40m-404i (Fig. 4), anaccumulating register divided into a units group of relays 4| lit-Mild,a tens group of relays 3| |a-3I4d (Fig. 3A), and a hundreds group ofrelays 33m-33M (Fig. 3) and an adding register also divided into a unitsgroup of relays 42m-425e (Fig. 4), a tens group of relays 32m-325e (Fig.3A), and a hundreds group of relays 34m-345e (Fig. 3). In the operationof the computer, the accumulating register is rst set to zero and therst charge is received upon the receiving register. This charge,together with that registered in the accumulating register (which iszero upon the nrst assavcs charge in the receiving register) is thentransferred to the adding register, after which the total charge on theadding registers is transferred to the accumulating registers. Theadding registers are then restored to their unoperated condition. Thesecond charge is received by thereceiving register and added to thetotal on the accumulating registers to make a new total in 'the addingregisters, which new total is then transferred to the accumulatingregisters and the adding registers are again returned to normal. Theseoperations are repeated for each incoming charge and when all chargesfor a line are thus accumulated, the perforator |00 is operated to punchthe total registered in the accumulating registers.

Before proceeding with a detailed description of the invention it isdesirable to outline in advance the various steps in the operationthereof which are required to produce a punched tape of the type aboveindicated.

The various registers will take the thousands. hundreds, tens and unitsdigits of the line number, the charge and the period from the oiiicetape. The distributor circuit connects the registers to the proper oneof the ten perforator circuits in accordance with the indicated value ofthe thousands digit. The perforator circuit thus selected in accordancewith said digit punches the thousands number together with otherinformation for the iirst charge recorded but for each call thereafterin the same thousands line group disregards the thousands digit andpunches only the hundreds, tens and units digits of each of the linenumbers in that group together with their respective charges and theperiod that follows each of said charges. A line feed code is punched atthe end of the thousands tapes thus prepared.

Each of the thousands tapes" is then run through the sensing mechanismof the distributor circuit and the register circuits take the record asthey did from the original tape. The distributor circuit now connectsthe registers to the perforator circuit indicated by the hundreds digitof each of the line members. The perforator then punches, for the rstline record, the entire line number with other information but for allthe line members after the first disregards the thousands and hundredsdigits and punches only the tens and units digits together with theirseparate charges and period. The line feed code is punched atthe end ofthe "hundreds tapes thus prepared.

Each hundreds tape is then run through the sensing mechanism and theregister circuits take the record as they did from the thousands tape.The distributor circuit now connects the registers to the properperforator circuit indicated by the tens digit of each of the linemembers. The perforator then punches, for the first line record, the

entire number with other information but for all line numbers after thefirst disregards the thou-` sands, hundreds and tens digit and punchesonly the units digit together with their separate charges and period.The line feed code is punched at the end of the tens tapes thusprepared.

The tens tapes produced as above each have the complete line number andcharge therefor recorded for the first line appearing on the tape butonly the units digits, the charge and the period for each of the linesthat follow it, the line feed code which appears atthe end of the tapebeing used to indicate the completion of the record. Each tens tape isrun through the sensingr mechanism and the register circuits take theenseres record as they did from the hundreds tapes, but the distributorcircuit now uses the units digit of each of the line members toselectively direct the record to the proper periorator circuit which,upon connection to the registers, operates to punch the complete linenumber as taken from the first tens tape record, the thousands, hundredsand tens digits being held` in their registers. Thereafter the unitsdigit is not punched, even though received. The computer portion of theperforator then takes the charges and accumulates them in the mannerindicated above. When the carriage return code is received by theperiorators, all of said perforator circuits proceed to punch the totalcharge accumulated in their associated computers, the line feed code anda carriage return" code. 'I'his units tape may be held in the unitsperforator until all the tens tapes have been run through, thusproviding ten final tapes which will have for each line number the totalaccumulated charge, line feed and carriage return codes.

SECTION IL DIs'rRIBUrIoN BY THOUSANDS Proceeding, now, with the detaileddescription of the invention, it will be stated that the tape punched bythe recording perforator circuit disclosed in the above-mentionedcopending application 'contains the line numbers or" the differentcalling lines of completed connections distributed non-consecutivelyalong the tape and these must be brought together and all the chargeslor each of the lines must be accumulated to obtain the information forbilling.

The distributor circuit is shown in Fig. '7. It has a magnet operatedtransmitter or sensing device 110 such as, for example, the telegraphtransmitter of the type shown in Patent 1,298,440 granted to G. R.Benjamin on March 25, 1919 and, through this transmitter, the tape ispassed. Six locking keys are provided as follows: one for each of thedistributing operations, namely, the thousands key i, hundreds key 102,tens key 103, units key 104, a start key 100 of the locking type and alocking key 105 for punching the line feed code on al1 the thousandstapes. The first operation is to distribute the line numbers on theoriginal or office tape in accordance with the thousands digit of eachof said numbers, the second by the hundreds, the third by the tens andthe fourth and final operation by the units, the last mentioneddistributing operation including the additional cperation ofaccumulating the charges for each line and punching the total on thefinal tape adjacent to the line number.

Referring, now, to the detailed operation of the invention, the oicetape is inserted into the transmitter feed and the thousands key 10i isdepressed thereby causing the operation of relay 12| over an obviouscircuit. Start key 100 is also operated. Switch 12D which is of the typeshown in Patent 1,520,821 advances its brushes upon the operation of themotor magnet and restores them to their normal position by a motorspring when the release magnet is energized. When key 100 is operated,the switch is in its normal position so that its brushes 112 and 113 areengaged with their respective rst terminals; that is, brush 113 isengaged to the terminal connected to the winding of relay 810 viaconductor 122 included in the bracket line 123 so that the depression ofkey 100 completes a circuit extending from ground on the contacts ofsaid key, No. 1 back contacts of relay 108, back contacts ofslow-to-release relay 106, contacts of sloW-to-release relay 101, brush1I3 and terminal No. 1 engaged thereby, conductor 122, winding of relaydi@ to battery. Relay 810 operates and, through its contacts, extendsconductors 124-128, inclusive, to the thousands register relays shown inFig. 8. By virtue of the sensing pins 136 that pass through thoseperforations in the oice tape which comprise the thousands code of thedigit of the lrst line number, the contact tongues, such as tongue 132,engage their respective grounded back stops and thus cause ground to beapplied to one or more of the conductors 124-123. Thus, if the thousandsdigit is a 2, then the tape will be perforated in positions 4 and 5according to the following code used in perforating the olce tape by theapparatus disclosed in my above-mentioned copending application. In saidcode, the plus signs indicate perforatons while the minus signs indicateno perforations.

Perforator code through the `holes in positions 4 and 5 of the tape, thebell crank lever 131 of each sensing pin passing through a perforationwill lower its Contact tongue 132 against a corresponding grounded backstop and ground one of the signaling conductors 124-128. Therefore, insuch an eventuality for the code of the thousands digit 2, conductors121 and 128 Will be grounded and one circuit will be completed fromground on conductor 121, No. 4

contacts of relay 810, conductor 83E, Winding of relay 804, winding ofslow-to-operate relay 806 to battery. Another circuit is completed fromground on conductor 128, No. 5 contacts of relay 8I0, conductor 332,Winding of relay 305, winding of relay 806 to battery. Relays 804, 805and 806 operate, the former two locking over their respective No. 5 andNo. 3 contacts, conductor 808, normal No. 1 contacts of relay 801,conductor 808 to ground on the No. 3 back contacts of relay 603. Relay806 operates and performs functions which will be described shortly,

The operated condition of relays 804 and 805 registers the thousandsdigit 2 in accordance with' the above code. Relay 804 grounds conductor8 I4 over its No. 4 contacts and relay 805 grounds conductor 815 overits No. 2 contacts, while the closure of the No. 4 contacts of relay 806completes a circuit for transmitter magnet 'lll which eX- tends over apath that traces from battery through the winding of the transmittermagnet 1li, conductor 129 included within the bracket 13|, No. 6contacts of relay 810, conductor 833, to ground on the No. 4 contacts ofrelay 806. Magnet 1l l operates, attracts its armature 138 therebycausing all the sensing fingers which are in an elevated position to bedepressed, causes screw '146 to engage the approximate end of linkthereby raising the slide rod 14| and causing pawl 142 to advance theratchet Wheel 143 through the space of one tooth', thus rotatingsprocket wheel 744 through the space of one tooth t cause the tape to beadvanced to the next transverse set of perforations. Inasmuch as relay805 is slow to operate, sumcient time is allowed for operating relays804 and 805 before operating ground is removed from conductors 121 and12S consequent to the operation of the transmitter magnet 1| l.

Upon the operation of relay 80S a circuit is closed for relay 108 whichtraces from ground on the No. 3 contacts of relay 808, conductor 835,No. 7 contacts of relay 8| 0, conductor 130 included within the bracketline 13|, winding of relay 103 to battery. Relay 10S operates, opensth'e circuit of the thousands cut-in relay 8|0 which releases todisconnect the transmitter leads 124-130 from the thousands register,including the circuit of relay 108 which, however, being slow-release,releases after an interval and including, also, the circuit oftransmitter magnet 1|| which releases to raise the sensing pins 13Sth'rough the holes on the -tape aligned thereover. Relay 10S, whenoperated, further closes the circuit of the stepping magnet 1| 5 ofswitch 120 over a path which is traced from ground on the contacts ofkey 100, No. l back contacts of relay 108, front contacts of relay 10S,back contacts of relay 109, winding of magnet 1|5 to battery. Magnet 1|5 operates, closes olf-normal contacts 1|4 of the switch 120, appliessupplementary ground through said contacts to conductor 809, and stepsthe brushes H2 and 1|3 to their next respective terminals where brush1|3 completes the circuit over conductor 134 through the winding yof thecut-in relay 0|0 of the hundreds register. Relay 10S is madeslow-to-release in order to make certain that it will not reclose itsback contact before the brushes of switch 120 have stepped and therebyfalsely reoperate relay 8 0.

The operation of relays 004 and 805 (for the assumed thousands digit 2)causes ground to be applied to conductor 822 over the following path:ground on the No. l back contacts of relay 002, No. 3- back contacts ofrelay 80|, No. 4 contacts of relay 805, No. 6 front contacts of relay804, No. 3 back contacts of relay 803 to conductor 822, which, withinbracket line 830, further extends over the No. 2 contacts of relay 12|,conductor 132, winding of relay 502 to battery. Relay 502 operates,connects th'e perforator circuit No. 2 disclosed in Figs. 1, 2, 3, 3aand 4 to the distributor circuit and locks to ground on conductor 80Svia its No. 9 contacts. Thus, depending upon the digital value of thethousands digit, the correspondingly numbered perforatlng circuit isconnected to the distributor circuit through the appropriate one of theten cut-in relays 500-509 (relays 503-501, inclusive, not being shown)there being ten perforating circuits of which th'e second, or No. 2, isfully disclosed for describing the operation of the invention, while theremaining nine perforator circuits are only schematically indicated lnFigs. 1 and 4. A

Each perforator circuit has its own cut-in relay for connection with thedistributor circuit, the cut-in relay operated depending upon thedigital value of the thousands digit. Relays 50i-005 are operated in theappropriate combination called for by the thousands digit code punchedon the tape for applying ground to one of the conductors S-025,depending upon the value of the thousands digit, in order that a circuitmay be completed tothe winding of the cut-in relay called for by thethousands digit to connect the correspondingly numbered perforator tothe distributor circuit. The relation between the perforator circuits,their respective cut-in relays 50B-509 and the conductor grounded foreach of them in accordance with the value of the thousands digit isshown in the following table:

Perlorator Conductor Relay Thousands digit grounded operated coggd 820500 0 821 50i l 822 502 2 823 503 3 824 504 4 825 505 5 826 506 6 827507 7 S28 508 8 829 509 0 As soon as the thousands digit 2, for example,

is registered in the thousands register and perforator circuit No. 2 isconnected to the distributor circuit through the operation of relay 502,conductors 8| |-8I6 from said register are extended to said perforatorcircuit through the contacts of relays SI5 and 502, the former relayhaving operated over a circuit shortly to be described.

In order to connect the various registers to the perforators, lockingkey SI2 is operated, whereupon a circuit is completed for relay SI5which extends from ground on said key, No. 2 contacts of relay 003, backcontacts of relay 60|, contacts of slow-release relay 602, brush 6| ofswitch B00 and rst terminal engaged thereby (said switch being of thesame construction as switch winding of relay SI5 to battery. Upon theoperation of this relay, therefore, conductors 0| |-8I5 are joined toconductors 53|-636, respectively, and the latter are joined toconductors 5| |5|S, respectively, through relay 502 which is operated.Conductors 8|4 and 0|5, however, are grounded by relays 804 and 005,respectively, so that conductors 035 and S35 are likewise groundedthrough the Nos. 3 and 2 contacts, respective- 1y, of relay SI5, andconductors 5|4 and 5I5 have ground applied to' them through the Nos. 5and 4 contacts. respectively, of relay 502. Inasmuch as relay |00 of theselected perforator circuit No. 2 is connected to conductor 5M and relay|05 of said perforator circuit is connected to conductor 5|5, circuitsare completed for these relays which thereupon operate. It will beobserved that ground is also applied to conductor 8|0 via the No. 1contacts of relay 006 in the thousands register which, over the No. 1contacts of relay SI5, extends to conductor 636, and through the No. 3contacts of relay 502 to conductor 5| 5, thence over the No. 3 backcontacts of relay 0, conductor I I I, No. 5 back contacts of relay 222,conductor 20|, No. 1 back contacts oil/relay |30, Winding of relay |32to battery. Relay |32 operates and applies ground through its No. 1contacts, conductor 202, No. 1 back contacts of relay 222, conductor203, to the No. 1 armatures of relays |0|-|05. The operated relays inthis group, namely, relays |00 and |05 for the thousands digit 2, willcause the ground on the No. l contacts of relay |06 to be applied overthe No. 4 back contacts of relay |3| to the winding of punch-set magnet0 of perforator |00 which is of known construction. The ground on theNo. l contacts of relay |05 is applied over the No. 5 back contacts ofrelay |3I to the winding of punch-set magnet 5. Inasmuch as the otherside of the winding of each of the code magnets |5 of the perforator |00is A connected to battery through the lower winding of relay |30,circuits are completed for punch-set magnets 4 and 5 and relay |30, themagnets operating to set the punch bars to punch the code of the digit2, and the relay operating over its lower winding and then locking overits upper winding and No. 2 contacts to ground on the No. 1 contacts ofrelay 006 as previously traced thereto via conductors 20|, SIE, 036 and8|6. This ground is now further applied over the No. 1 front contacts ofrelay |30, No. 2 front contacts of relay |32, No. 3 back contacts ofrelay |01, No. 4 contacts of relay 0, winding of punch magnet |33 tobattery. The magnet operates and causes the tape to be perforated inpunch positions 4 and 5 to designate the thousands digit of the callingnumber.

When relay |30 operates, relay |32 releases after an interval, thusallowing sufcient time to operate punch magnet |33 as above described.Ground on the No. 1 front contacts of relay |30 is then applied over theNo. 2 back contacts of relay |32, conductor 204, back contacts of relay2| No. 2 back contacts of relay 222, conductor 234, No. 1 contacts ofrelay 502, conductor t3?, winding of slowtorelease relay 005 to battery.Relay 60| operates, opens the circuit of relay Sie which therebyreleases, disconnects the perfo rator circuit from the thousandsregister circuit, and closes the circuit of the stepping magnet Gitti ofswitch 500 over` a path traced from battery through the winding ci saidmagnet, back contacts of relay dtd, front contacts of relay 50i, No. 2contacts of relay 603 to ground on the contacts of key SI2. The magnetoperates and steps the switch brushes and iiii to their next respec-xtive terminals whereupon brush @it completes the circuit throughthe'winding of relay iii t.

The release of relay @l5 further causes ground to be disconnected roinconductors dit, tdi and lli, thereby causing the release of relay |530in consequence of which ground is disconnected from conductors 23@ andttl thereby causing the release of relay 50| which, in turn, opens thecircuit of magnet Gilt. Also, the opening of the Nos. l and 5 contactsets on relay die causes the release of relays H04 and |05, therebyrestoring the perforator register relays to normal in readiness toreceive the hundreds digit. lt will be ob-1 served. however, that,although the thousands register has been disconnected from theperforator, relays 80d and 805 of said` register remain energizedthrough their respective locking circuits to ground on the No. 3contacts of relay 003 via conductor 309. As will be shown below, theoperated register relays of the 'thousands register as well as theoperated register relays of the other registers, will be released afterthe perforator has punched the period code of a vline charge record.

As the tape is fed successively after each reg-s istration through thetransmitter H0, the operations above described are repeated with thehundreds, tens and units digit code designations, the number of messagesto be charged and the period code of the calling number. As thehundreds, tens, units, charge and period registers are successivelyswitched in and out of connection with the distributor circuit throughtheir respective cut-in relays 9|0, |0|0, |||0, |2|0 and l2 l0',perforator circuit No. 2 causes the tape |20 to be punched transverselyand in succession with a number of punches in each transverse column todesignate the code of the digit registered in the corresponding digitregisters, which registration was derived, in turn, from theperforations on the office tape as each transverse column thereon passedthrough the transmitter 110 and caused the grounding of the appropriatecombination of conductors in the group 124-128 as before described. Theregister relays and the wiring of these relays in the hundreds, tens,units, charge and period registers are, therefore, the same as those oi.the thousands register, the operation of the register relays in each cithese registers is the same as that of the thousands register and,therefore, the description of said oper-ations is not repeated. Thedesignations oi' the various relays and conductors in each of thehundreds, tens, units, charge and period registers are made the same asthose of the corresponding relays and conductors of the thousandsregister so that the circuit operations corresponding to those so fardescribed for said last-mentioned register may, if desired, be easilyfollowed in each of the other registers. Each registration, uponbecoming locked in the appropriate register, remains locked thereinunder the control of ground on the No. 3 contacts of relay S03 appliedto conductor 0639 and the connecting conductors 900, i009, M00, i209 andiili' notwithstanding the release of the appropriate digit register fromthe perforatoi' circuit after the punching operations following eachregistration as above described. The register relays themselves,however, are unlocked only when relay operates, as hereinafterdescribed.

When the brushes li2 and of switch '120 have been advanced to the No. 6terminal set at which time brush 'il 3 engages conductor that is, whenpreparing to register the period code, e. circuit is completed for relayWit similar to that for relay Si previously described, which entendsfrom ground on the contacts oi start key lili), thence as previouslytraced to brush 'iii-5 and the No. 6 terminal engaged thereby, conmductor 133 within bracket line 323, winding of relay i250' to battery.Relay i250 operates and entends the transmitter conductors 'i and 72'?over its No. l and No. 2 contact sets to the windn ings respectively ofrelays i202 and iiiill and the switching conductors and 'i3d over itsNo. 3 and No. 4 contact sets to the No. 2 and No. 3 contact sets,respectively, of relay i205'. Now since the period code requires aperforation in the second and fourth positions of the oihce tape, then,when said tape is in the position in which the perforations of said codeare aligned over sensing ngers 73S of said two respective positions,conductors 'itt and '|23' become ground-= ed thereby and complete easilytraced circuits to relays |202 and i200'. inasmuch as the winding oirelay |206 is connected in series with the windings of said registerrelays, relay |206 also operates when the circuits o' relays |202' and|204' are completed. By the time relay |208 operates, relay B2i) willhave been operated since brush Gli will have been advanced in the mannershown to the No. 6 terminal connecting with the winding of said relay asa consequence of the successive punching or" the line digits and thecharge units on tape l2@ as previously explained. With relays 320 andi205' operated, ground is applied to conductor mit' through the No. 1contacts of relay i208' to conductor 636 via the No. l contacts of relay620 and to conductor 5|6 via the'No. 3 contacts of relay 502, wherefroma previously traced circuit is completed to relay |32 which, inoperating, results in the operation of punch-set magnets 2 and 4 of theperforator |00 consequent to the operation of relays |02 and |04 overeasily traced

